<script setup>
import { getCategoryFilterAPI, getSubCategoryAPI } from '@/apis/category'
import { onMounted, ref } from 'vue';
import { useRoute } from 'vue-router';
import GoodsItem from '../Home/components/GoodsItem.vue';
const router = useRoute()
/* 二级分类 */
const filterData = ref([])
/* 商品列表 */
const goodsList = ref([])
/* 列表数据分类 */
const reqData = ref({
  categoryId: router.params.id,
  page: 1, /* 页数 */
  pageSize: 20,  /* 每页条数 */
  sortField: 'publishTime' /* 排序  'publishTime' | 'orderNum' | 'evaluateNum' */
})
/* 获取面包屑 */
const getFilterList = async () => {
  const { data: res } = await getCategoryFilterAPI(router.params.id)
  filterData.value = res.result
}
/* 获取分类数据 */
const getGoods = async () => {
  const { data: res } = await getSubCategoryAPI(reqData)
  goodsList.value = res.result.items
}

onMounted(() => {
  getFilterList()
  getGoods()
})
/* 监听Tables切换 */
const tabChange = (tab) => { /* tab table中的name属性 */
  reqData.value.sortField = tab
  reqData.value.page = 1
  getGoods()
}
 /* 加载更多 */
const disabled = ref(false)
const load = async () => {
 /* 获取下一页的数据 */
  reqData.value.page+=1
  const {data : res} = await getSubCategoryAPI(reqData.value)
  goodsList.value = [...goodsList.value,...res.result.items]
  /*  加载完毕 停止监听 */
  if (res.result.items.length === 0) {
    disabled.value = true
  }
}
</script>

<template>
  <div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${filterData.parentId}` }">{{ filterData.parentName }}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{ filterData.name }}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
      <el-tabs @tab-change="tabChange" v-model="reqData.sortField">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div class="body"  v-infinite-scroll="load"  :infinite-scroll-disabled="disabled">
        <!-- 商品列表-->
        <GoodsItem v-for="item in goodsList" :goods="item" :key="item.id" />
      </div>
    </div>
  </div>
</template>



<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>